VERIFIED SOLUTION i
Using Portrait Interaction Opimizer version 5.5, the Promote to Production process fails for users with 'AllowToAdminister' rights.
The Promote to Production SSIS package included in Release CD For IO 5.5 is using outdated version of Portrait Shared Services proxies which didn’t have newly added user rights.
ResolutionUPDATED: August 23, 2017
It has been rebuilt (compiled) with latest version of PSS proxies.
Download and apply Patch TFS-32473 available from Technical Support.